Cleaning pad



Sept. 9, 1941.

u. w. ANDERSON CLEANING PAD Filed July 26, 1959 M/VE/VTOR By John Ml.Anderson ATTORNEY FIG. 5

Patented Sept. 9, 1941 2,255,497 CLEANING PAD John W. Anderson,Gary,lnd., asslgnor to Productlve Inventions, Inc., a corporation ofIndiana Application July 26, 1939, Serial No. 286,504

. 2Claiins.

My invention relates to cleaning pads and more particularly to scouringpads especially adapted for cleaning flat surfaces such as windows andWindshields. I

In cleaning glass, particularly Windshields of automobiles, it isdesirable to provide a scouring pad which has two relatively flatsurfaces, one of which may comprise 'a fabric and the other of whichpreferably comprises a metal wool covered surface. Metal wool haspreviously been suggested for use in removing insects and foreign matterfrom Windshields, but this generally has not been successful because ofthe shape of the material and because the material generally has been soharsh as to injure the finish of the automobile adjacent to thewindshield, particularly the metal rim of the windshield. It furthermorewould be desirable if in conjunction with metal wool it were possible toutilize water or a liquid cleaning agent.

It is an object of my invention, therefore, to provide an improvedscouring pad suitable for cleaning windows and Windshields which willovercome the above mentioned disadvantages of the arrangement of theprior art, and which will be simple and reliable in operation.

A further object of my invention is to provide an improved method ofmanufacture of a scouring pad of the type referred to above.

Another object of my invention is to provide an improved scouring padfor glass surfaces and the like which can be used against framesadjacent to said surfaces without exposing such frames to the scouringaction of the most abrasive portion of the surface of said pad.

Still another object of my invention is to provide an improved scouringpad adapted tohold metal wool on its surface with a minimum of tendencyof the wool to break and detach itself from the pad. v

The novel features which are believed to be characteristic of myinvention are set forth withtaching or securing the metal wool to thefabric covering of the securing pad.

Referring more particularly to Fig. 1, I have shown therein my improvedscouring pad I B which preferably has the shape of a quadrangular prism,the outer surface of which is constructed of two. pieces of fabrics IIand IL. The upper fabric 12 is provided with metal wool l3 which coversa substantial portion of one of the larger surfaces of the pad.Preferably this metal wool should be a metal wool which has sufllcientabrasive action when in use to remove insects and foreign matter fromautomobile Windshields, yet it should be sumciently fine in texture andnot harsh so that the metal finish of the windshield frame will not beinjured. It has been found that annealed bronze wool is satisfactory forthis purpose. The metal wool surface of the scouring pad 40, when usedwith water or a liquid cleaning agent quickly and readily removesinsects and foreign matter from the windshield.

The shape of the fabric covering of the scouring pad HI is maintained bya quadrangular prism of resilient foraminous material H shown in thecross sectional view of Fig. 2. One form of foraminous material whichhas been found to be satisfactory is sponge rubber, although it will beapparent that other materials may be used. The use of a foraminousmaterial on the interior of the cleaning pad 10 permits a certain amountof water to besupplied to the metal wool surface l3 of the pad duringthe cleaning operation. The foraminous material furthermore permits acertain amount of moisture to be supplied to the fabric surface ll sothat when the pad is used for applying a cleaning agent in cake orpowder form a certain amount of cleaning agent will adhere to-thissurface and additional water will be supplied to this fabric portion ofthe pad during the cleaning operation.

In the process of-manufacturing the cleaning pad l0 suitable fabric suchas I! is cut into strips.

having a width indicated as A in Fig. 3. Strips of annealed metal wool,such as for example ann'ealed bronze wool, are then placed upon thestrips of fabric and the metal wool is then stitched, at suitableintervals such as the intervals' B shown in Fig. in the same directionas the general direction of the fibers of the metal and these rectanglesare then fed into a multineedle sewing machine so as to stitch the woolin a direction substantially at right angles to the previous stitching,as will be apparent from Fig.

wool. The strips of fabric with a strip of metal wool stitched thereonare then cut into rectangles 1. Preferably, the latter series ofstitches should be separated by a smaller interval such as C.

Another piece of similarly shaped cloth is then joined at three edgesthereof to the fabric having metal wool stitched thereon so as to forman envelope. A quadrangular prism of resilient foraminous material isthen inserted within the envelope and the envelope is closed bystitching the remaining side. This produces a quadrangular prism-shapedscouring pad having a fine abrasive metal wool on one surface and aplain fabric on the other surface of the pad which may be saturated withwater or a liquid cleaning agent thereby producing a simple device whichis reliable and efficient in operation.

While I have shown and described my invention in connection with acertain specific embodi ment, it will, of course, be understood that Ido not wish to be limited thereto, since it is apparent thatmodifications may be made in the embodiment and the materials thereofwithout departing from the spirit and scope of my invention as set forthin the appended claims.

What I claim as new and desire to secure by Letters Patent of the UnitedStates is:

prism of resilient foraminous material, said prism 'fitting porousfabric, and annealed metal wool covering laterally a substantial centralportion of one of the larger surfaces of said fabric, said wool havingits fibers generally arranged in one direction and being secured to saidfabric by stitching said wool at certain intervals in the generaldirection of the fibers of said wool and also at smaller intervals atsubstantially right angles to the general direction of the fibers ofsaid wool.

2. A scouring pad comprising a quadrangular prism of resilientforaminous material surrounded by a plurality of pieces of porous fabricforming a close-fitting cover, said prism having two surfaces of largerarea than the remaining surfaces and annealed bronze metal wool coveringlaterally a substantial portion of one of the larger surfaces of saidfabric so as to provide two non-abrasive edges, said wool being securedto said fabric by stitching said wool at certain intervals in thegeneral direction of the fibers of said wool and also at smallerintervals at substantially right angles to the general direction of thefibers of said wool.

JOHN W. ANDERSON.

